1. This is the first time he went abroad.

=> He hasn't went abroad.

2. She started driving 1 month ago

=> She hasn't drived for 1 month

3. We began eating when it started to rain

=> We have eaten since it started to rain

4. I last had my hair cut when I left her.

=> I haven't cut my hair since I left her.

5. The last time she kissed me was 5 months ago

=> She hasn't kissed me for 5 months.

6. It is a long time since we last met.

=> We haven't met for a long time

7. When did you have it?

=> How long have you had it?

8. This is the first time I had such a delicious meal.

=> I haven't had such a delicious meal.

9. I haven't seen him for 8 days

=> The last day I've seen him was 8 days ago.

10. I haven't taken a bath since Monday

=> It is Monday since I took a bath.